What is a requirement for links to successfully participate in an aggregated link?
A. that links have the spanning tree protocol disabled
B. that links use the same speed and duplex mode
C. that links use the same media type and are untagged
D. that links are untagged and are associated to the same VLAN
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B.
“ArubaOS switches do not check for compatibility on links in a manual link aggregation. You could, theoretically, combine links of different speeds and duplex modes, and the links could become part of the link aggregation. However, you should not do so.
You must be very careful to check the compatibility yourself for:
•Duplex mode
•Link speed
•Media
The link aggregation will not work as well as expected if, for example, you combine links of different speeds. You could even disrupt network connectivity if you aggregate incompatible links between an ArubaOS switch and different type of switch that does check for compatibility. The ArubaOS switch will use the incompatible links, but the other switch might not accept traffic on the incompatible links, disrupting connectivity.”
&
“You do not need to configure matching VLAN settings on physical interfaces in order to add them to a link aggregation. Instead ArubaOS switch ensure that all interfaces in an aggregated link have compatible VLAN settings by having you configure these settings on the link aggregation itself (trk interface).
When you add an interface to a link aggregation it loses any VLAN settings that it had and takes the settings from the trk interface.”